3x^2-21x+2x-14=6x-11

Simple and best practice solution for 3x^2-21x+2x-14=6x-11 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3x^2-21x+2x-14=6x-11 equation:


Simplifying
3x2 + -21x + 2x + -14 = 6x + -11

Reorder the terms:
-14 + -21x + 2x + 3x2 = 6x + -11

Combine like terms: -21x + 2x = -19x
-14 + -19x + 3x2 = 6x + -11

Reorder the terms:
-14 + -19x + 3x2 = -11 + 6x

Solving
-14 + -19x + 3x2 = -11 + 6x

Solving for variable 'x'.

Reorder the terms:
-14 + 11 + -19x + -6x + 3x2 = -11 + 6x + 11 + -6x

Combine like terms: -14 + 11 = -3
-3 + -19x + -6x + 3x2 = -11 + 6x + 11 + -6x

Combine like terms: -19x + -6x = -25x
-3 + -25x + 3x2 = -11 + 6x + 11 + -6x

Reorder the terms:
-3 + -25x + 3x2 = -11 + 11 + 6x + -6x

Combine like terms: -11 + 11 = 0
-3 + -25x + 3x2 = 0 + 6x + -6x
-3 + -25x + 3x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-3 + -25x + 3x2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-1 + -8.333333333x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -8.333333333x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -8.333333333x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -8.333333333x + x2 = 0 + 1
-8.333333333x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-8.333333333x + x2 = 1

The x term is -8.333333333x.  Take half its coefficient (-4.166666667).
Square it (17.36111111) and add it to both sides.

Add '17.36111111' to each side of the equation.
-8.333333333x + 17.36111111 + x2 = 1 + 17.36111111

Reorder the terms:
17.36111111 + -8.333333333x + x2 = 1 + 17.36111111

Combine like terms: 1 + 17.36111111 = 18.36111111
17.36111111 + -8.333333333x + x2 = 18.36111111

Factor a perfect square on the left side:
(x + -4.166666667)(x + -4.166666667) = 18.36111111

Calculate the square root of the right side: 4.284986711

Break this problem into two subproblems by setting 
(x + -4.166666667) equal to 4.284986711 and -4.284986711.

Subproblem 1

x + -4.166666667 = 4.284986711 Simplifying x + -4.166666667 = 4.284986711 Reorder the terms: -4.166666667 + x = 4.284986711 Solving -4.166666667 + x = 4.284986711 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.166666667' to each side of the equation. -4.166666667 + 4.166666667 + x = 4.284986711 + 4.166666667 Combine like terms: -4.166666667 + 4.166666667 = 0.000000000 0.000000000 + x = 4.284986711 + 4.166666667 x = 4.284986711 + 4.166666667 Combine like terms: 4.284986711 + 4.166666667 = 8.451653378 x = 8.451653378 Simplifying x = 8.451653378

Subproblem 2

x + -4.166666667 = -4.284986711 Simplifying x + -4.166666667 = -4.284986711 Reorder the terms: -4.166666667 + x = -4.284986711 Solving -4.166666667 + x = -4.284986711 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.166666667' to each side of the equation. -4.166666667 + 4.166666667 + x = -4.284986711 + 4.166666667 Combine like terms: -4.166666667 + 4.166666667 = 0.000000000 0.000000000 + x = -4.284986711 + 4.166666667 x = -4.284986711 + 4.166666667 Combine like terms: -4.284986711 + 4.166666667 = -0.118320044 x = -0.118320044 Simplifying x = -0.118320044

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.451653378, -0.118320044}

See similar equations:

| -18x+5(8+3x)=7(3x-8) | | 24p(p)-55p-24=0 | | 7y+13x-4=0 | | x^4+6x^3+2x^2=0 | | 5(r-1)=1(r-4)-6 | | 6-8x+12=20 | | 3.7z-3.3=-7 | | -(2t-0.07)=0.9(1.4-t) | | 12x-15=-3 | | 5y-14=7p+4 | | 40+15+.25x=45+45+.35x | | 18x+24=4(3x+4)+6x+8 | | 4(3+5)= | | 2(3-4z)-5(2z+3)=z-17 | | -3x/4-3=-12 | | 40+15+.25=45+45+.35 | | =5mn-3n+10m-6 | | X^2=15x-36 | | 2x-5=29 | | -(9n-2)-15-(-n)=0 | | 4x-2x+3=-3x+x-1 | | 4x-12=3+8x-5 | | -7x-8x=-9 | | 3+(t+4)-t=6T | | 9a-5a-4+4=3a+7-15 | | 0.2x+.05(12-x)=.10(27) | | 20x-5=4x+6 | | 7x-y=2 | | 7-N=63 | | x/3-4=6 | | 8x=-2x-41 | | 4y^2-5y+3+2y^2+7y-7= |

Equations solver categories